Question: What country was Jiangsu a part of in October 1949?
Paraphrase: What nation was Jiangsu a piece of in October 1949?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q16963 p:P17 ?s . ?s ps:P17 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1949')) }